Multiple location boring jig



27, 1966 F. J. RUSSELL ETAL 3,293,954

MULTIPLE LOCATION BORING JIG Original Filed March 8, 1963 1N VENTORSF250 J. Russs; L PpUL (1 xfioc co United States Patent 3,293,954MULTIPLE LOCATIUN BORING JIG Fred .1. Russell, 8635 Otis St., Southgate,Calif. 90280,

and Paul (Iiroceo, Bellflower, Caiif.; said Cirocco assignor to saidRussell Continuation of application Ser. No. 263,794, Mar. 8, 1963, nowPatent No. 3,212,366, dated Oct. 19, 1965. This application June 28,1965, Ser. No. 467,310

1 Claim. (Cl. 77-62) This is a continuation of copending applicationSerial No. 263,794, filed March 8, 1963, and now Patent No. 3,212,366.

The invention relates to a device useful in preparing for theinstallation of a door lock on a door. More particularly, the inventionhas reference to jigs in the form of a clamp which can be attached tothe door and properly located with respect to the edge of the door,whereby to precisely locate one or more holes, to be made by aconventional drill, within which parts of the door lock are ultimatelylocated.

Door locks of the commonly acceptable kind have been constructed in suchfashion that they are located in a door in holes which can be made bydrilling for reception of the parts of the lock. The mounting of doorlocks in this fashion results in an appreciable saving of workmans time;but even by the employment of this improved technique, there is stilltime lost which could be saved in properly locating the hole-s on a doorat some selected location which may differ from one door to another. Itis frequently the practice to alter the backset depending upon someparticular style of lock which is to be installed, the backset being thedistance from the edge of the door to the side hole center where thedoor knob will be located.

Further still, when work is to be done upon doors having a fine finish,such as the slab doors and other type doors currently popular, it isextremely important to locate the hole which is to be drilled with ahigh degree of precision and also to make certain that there will be nosplintering nor resulting ragged edge on either face of the doorresulting from the drilling or boring operation. The locating, however,should be quick, easy, and certain, and it becomes desirable to make useof a location boring jig of such simplicity that it readily can behandled by workmen who may perhaps not be possessed of the highestdegree of skill or who even, though skillful, may be under pressure oftime.

It is therefore among the objects of the invention to provide a new andimproved boring jig which is adjustable for locating a side hole in adoor at one of several locations with relation to the edge of the door.

Another object of the invention is to provide a new and improvedmultiple location boring jig for locating a side hole in a door inrelation to the edge of the door, the adjustable parts of which can bewithdrawn and replaced in different locations by simple and easy meansand which also may be entirely removed and still carried by the devicewhen the device is being used in the basic setting for which noadjustable. parts are required.

Still another object of the invention is to provide a new and improvedmultiple location boring jig wherein a locator adapted for engagementwith the edge of a door may "be constructed of nothing more thansuitably placed apertures in the jig at alternate locations into whichan appropriate projection may be inserted and temporarily anchored inplace at the selected set-ting.

With these and other objects in view, the invention consists in theconstruction, arrangement and combination of the various parts of thedevice, whereby the objects contemplated are attained, as hereinafterset forth, pointed out in the appended claim and illustrated in theaccompanying drawings.

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In the drawings:

FIGURE 1 is a side elevational view of the jig shown in positionattached to a door at one of its settings.

FIGURE 2 is a plan view of the device of FIGURE 1 partially broken away.

FIGURE 3 is a right end elevational view of the device in the positionshown in FIGURE 1, but with the clamping knob removed.

FIGURE 4 is a partial side elevational view showing the device in aposition of adjustment different from FIGURE 1.

FIGURE 5 is a side perspective view of the locator assembly which isused with the device.

In an embodiment of the invention chosen for the purpose ofillustration, the device is shown as one consisting principally of leftand right side plates 10 and 11 respectively provided with a clampingmeans indicated generally by the reference character 12 for mountingwhat is here identified as a multiple location boring jig upon a door13. For purpose of description, the door 13 will be assumed as having aface 14 engaged by the left side plate 10 and a face 15 engaged by theright side plate 11. An edge 16, which may or may not be a beveled edgeof the door, is the free edge of the door which engages the customarydoor stop (not shown).

For clamping the left side plate 10 and right side plate 11 fast to thedoor 13, the clamping means 12 includes a block 17 which is engaged by ashaft 18. A mid-portion of the shaft 18 is journaled in the block 17 soas to rotate freely in the block 17 but so that it cannot shift endwisewith relation to the block 17. One end of the shaft 18 is provided withright-hand threads 20 and the other end is provided with left-handthreads 21. The threads 20 and 21 are received in appropriately threadedbores in the respective left and right side plates 10 and 11, so thatwhen the shaft 18 is rotated by manipulation of a handle 22 rotated inone direction, the side plates 10 and 11 will move simultaneously towardeach other or, on the contrary, will move simultaneously away from eachother when the handle 22 is rotated in the opposite direction.Constructed in this fashion, the side plates 10 and 11 will always beadjusted at equal distances from the block 17.

To further guide manipulation of the side plates 10 and 11, there isprovided a guide shaft 23 at the bot-tom of the block 17 which rides ina cutout 24 in the left side plate 10 and in a similar cutout 25 in theright side plate 11. An adjusting shaft 26 has a threaded engagementwith the adjacent end of the left side plate 10 and is provided with -alock nut 27. The adjusting shaft 26 can be moved in or out dependingupon the thickness of the door 13 to which the apparatus is to beattached and there locked in place, so that when the clamping means 12is manipulated, it will enjoy a degree of lever action about the freeend of the adjusting shaft 26 when the handle 22 is manipulated to screwthe shaft 18 into its clamping adjustment.

Buttons 28 on the inside face 29 of the block 17 are adapted to engagethe edge 16 of the door 13 in one position of the boring jig on thedoor, namely, the position for which it is designed when the specialadjusting feature is not being employed. Holes 32 and 33 in axial alignment as shown respectively in the side plates 10 and 11, provide onepair of side hole drill guide bores. Holes 34 and 35 respectively on theleft side and right side plates 10 and 11 form the second pair of sidehole drill guide bores. It is also advantageous to provide a liner 36 toform the hole 32, for example, the liner being adapted to fit anaperture 37 in the left side plate 10 and having a flange 38 overlyingthe outside face of the left side plate 10 in a suitable recess 39. Theliner 36 is shown attached to the left side plate by means of screws 40.

A similar liner 41 is mounted in the same fashion for the purpose ofproviding the hole 34. It is also good practice to provide a hole 30 toserve as an edge hole guide bore for a drill which makes a hole enteringthe edge 16 to accommodate a latch bolt casing (not shown).

To adjust the device at different locations on the door 13 with respectto the edge 16, use is made of a locator assembly indicated generally bythe reference character 45 and shown in perspective view in FIGURE 5.The locator assembly consists of a bracket 46 having an upper arm 47 anda lower arm 48. On the upper arm is a shaft 49 anchored to the end ofthe arm 47 in a collar 50, the shaft being provided with a ring 51 moreor less midway between opposite ends of the shaft 49. A similar shaft 52is mounted in the arm 48 in a similar fashion by employment of a collar53. This shaft 52 also has a ring 54 substantially like the ring 51 andlocated substantially midway between opposite ends of the shaft 52. Ascrew 55 is journaled so as to freely rotate in the bracket 46 at thejunction of the arms 47 and 48 and is provided with a threaded end 56.

In the left side plate 10 there is provided a pair of respectively upperand lower large holes 57 and 58. In the right side plate is a similarpair of respectively upper and lower small holes. The upper small hole59 is shown in axial alignment with the large hole 57. A similar smallhole (not shown) in the right side plate is in axial alignment with thelarge hole 58. There is also a second pair of respectively upper andlower large holes 61 and 62 in the left side plate 10. Here again thereis a small hole 63 in axial alignment with the large hole 61 and asimilar small hole (not shown) in axial alignment with the large hole62. Intermediate the two pairs of holes and on the left side plate 10 isa threaded Opening 64.

Both holes 32 and 34, for example, which are adapted to receive a drill,can be located at a distance from the edge 16 of the door 13 byemployment of the locator assembly 45 in either of the pairs of holes57, 58, or 61, 62, etc., which are adapted to receive the locatorassembly 45. There are, of course, two different locations for each ofthe holes 32, 34 wherein they can be located de pending upon the locatorassembly 45 adjustment. It also is true that the holes 32, 34, in thealternative, can be located by use of the buttons 28.

On the assumption that the hole 32 and its counterpart hole 33 are thesubject of adjustment, let it be assumed that the locator assembly 45 ismounted upon the device as shown in FIGURES 1 and 2. In this instance,the shaft 49 is inserted in the large hole 57, and the shaft 52 isinserted in the large hole 58. These holes are large enough that therings 51, 54 can pass through the holes 57, 58. The shafts 49, 52 areextended through the holes 57, 58 until the collar 50 is centered in thelarge hole 57, and the collar 53 is centered in the large hole 58. Atthe same time, the free end of the shaft 49 will center in the smallhole 59, and the end of the shaft 52 will center in the other small hole(not shown). While the shafts 49, 52 are being inserted as shown, thethreaded ends 56 of the screw 55 is threadedly engaged in the threadedopening 64, and the locator assembly in this way fastens securely to theleft side plate 10.

The device then can be applied to the door 13 and moved toward the edge16 of the door 13 until the rings 51, 54 engage the edge 16. The plates10 and 11 are then fastened at a proper elevation by rotating the handle22, thereby to clamp the plates 10 and 11 to the respective faces 14 andof the door 13. The device is then ready for use by having the operatormove a drill through the appropriate hole 32, thus drilling a holethrough the door 13 until the drill emerges through the hole 33 or byhaving the operator move a drill through the appropriate hole 34, thusdrilling a hole through the door 13 until the drill emerges through thehole 35.

When a different adjustment is desired, the locator assembly 45 may makeuse of the large holes 61 and 62 and corresponding small holes. This isaccomplished merely by disengaging the screw 55, reversing the locatorassembly so that shaft 52 is inserted into the upper large hole 61, andshaft 49 is inserted into the lower large hole 62. The shafts 52, 49 areextended through and into the right vside plate 11, the shaft 52entering the small hole 63 and the shaft 49 entering the other smallhole (not shown). Again, in this position, the threaded end 56 of thescrew 55 enters the same threaded opening 64 to anchor-the locatorassembly 45 in its new position. In the same manner, the device isbrought into engagement with the door 13 until rings 51 and 54 engagethe edge 16, in this way locating both of the holes 32, 34, for example,at different distances with respect to the edge 16.

Should it be desired to employ the device in the original conditionwithout employment in any way whatsoever of the locator assembly 45, thelocator assembly 45 can still be carried on the device so as not to bemisplaced. To accomplish this, there are provided large holes 65 and 66in the left side plate 10 to accommodate respectively the shafts 49 and52 of the locator assembly 45. Similar small holes (not shown) areprovided in the right side plate 11. When the shafts 49, 52 are insertedinto the holes 65, 66, etc., the locator assembly 45 can be anchored inplace 'by engagement of the threaded end 56 of the screw 55 in anappropriately threaded opening 67 provided for its reception. With thelocator assembly 45 thus carried by the device, the plates 10 and 11under control of the clamping means 12 can be fastened to the door 13without being interfered with by the locator assembly 45, even thoughcarried by the plates 10 and 11.

It will have become apparent from the foregoing description that arelatively large number of adjustments of the device is possible for thepurpose of locating a transverse hole in a door for reception ofappropriate door lock, very simple means being employed which isincorporated in the device.

While the invention has herein been shown and described in what isconceived to be the most practical and preferred embodiment, it isrecognized that departures may be made therefrom within the scope of theinvention which is not to be limited to the details disclosed herein butis to be accorded the full scope of the claim so as to embrace any andall equivalent devices.

Having described the invention, what is claimed as new in support ofletters Patent is:

A boring jig for guiding a side hole drill in the making of a side holethrough a door at a selected distance from an edge of the door and forguiding an edge hole drill in the making of a hole in the edge of saiddoor, said boring jig comprising opposite side plates adapted to engageopposite sides of the door, at least one of said plates having a sidehole drill guide therethrough, a clamping mechanism attached torespectively adjacent ends of said plates and including a positioningblock having a drill guide hole adapted to guide said edge hole drill,and a locator assembly and means for selectively removably mounting saidlocator assembly in a first position on at least one of said plates orin a second position on at least one of said plates, said locatorassembly when mounted in either of said positions being closer to saidedge of the door than said positioning block and adapted thereby tolocate said side hole drill guide at a first location or at a secondlocation relative to said edge of said door.

FRANC S S. HUSAR, Primary Examiner.

